Where does “colŭpus” come from?

colŭpus (Latin) comes from Latin colaphus, from Ancient Greek κόλαφος, from Ancient Greek κόνδυλος — knuckle; knot in a string; any hard, bony knob.

Ancestry of “colŭpus”, step by step

Step	Language	Word	Meaning
1	Latin	colaphus	a blow with the fist; cuff
2	Ancient Greek	κόλαφος	a buffet, a blow
3	Ancient Greek	κόνδυλος	knuckle; knot in a string; any hard, bony knob